Miss Valdoz offered you a job which should be completed within 50 days. At present, you have xxx workers. (xxx would be the last digits of your student number.) In estimate, you can finish the job in 80 days. In the xxx men, the first 10 are paid at 190 pesos a day, next 10 at 220 pesos a day, and the rest at 300 pesos a day . For each day beyond the original 50 days, you have to pay 2000 pesos liquidated damages. How many more men should you hire to complete the job on time? If the first 5 men you hire are paid at 220 pesos a day and the rest 190 pesos a day, should you save more money by hiring additional men or by just paying the fine?

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